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http://dx.doi.org/10.7855/IJHE.2012.14.2.001

Behavior and Resistance to the Reflection Crack of Composite Pavement with Waterproof Membrane  

Suh, Young-Chan (한양대학교 교통공학과)
Lee, Yong-Mun (평화엔지니어링 기술연구원)
Kim, Jun-Hyung (현대건설 기술연구소 토목재료팀)
Cho, Nam-Hyun (인천국제공항공사 연구개발단)
Publication Information
International Journal of Highway Engineering / v.14, no.2, 2012 , pp. 1-10 More about this Journal
Abstract
As old concrete pavements of over 20years in age are increasing in expressways, the repair and rehabilitation of concrete pavement have become an important issue. Although asphalt overlay is widely used as an alternative to rehabilitate the old concrete pavement, problems due to infiltrated water such as reflection crack and pothole are imposing a very serious threat to its performance. This study proposes waterproof membrane as a solution to minimize the damage due to reflection crack and infiltrated water, and accelerated pavement testing was carried out for the performance comparison of composite pavement with waterproof membrane and ordinary tack coating. The experiment used water spraying to simulate rainfall, and the behavior and moisture resistance characteristics of overlay pavement were analyzed. The experimental result indicated that the strain pattern of waterproof membrane section differed from ordinary tack coating section because waterproof membrane caused the asphalt pavement and concrete pavement to move together. Additionally, since waterproof membrane minimized the infiltration of water and delayed the occurrence of reflection crack by about 70% in comparison to ordinary tack coating method. Moreover, the damage due to infiltrated water also decreased.
Keywords
composite pavement; reflection crack; accelerated pavement testing; moisture resistance characteristic;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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